I've been researching for quite a while and I couldn't find any explanation or at least a how to create a vector graphic application (specifically in windows) where I can create a 3D vector shape, say a box. I know there is OpenGL and DirectX for that and the new Vulkan API but I don't wan't to use those APIs and libraries. What I am asking is where can I find examples or at least tutorials for creating custom made API graphics library for the C++ language. If there is not a way in C++ language then any other way to do it. By example masm or nasm Assembly language.
If my question is too broad please specify any additional information you need to be able to answer my question.